[Trilinos-Users] AztecOO as smoother for ML from Stratimikos

Bartlett, Roscoe A rabartl at sandia.gov
Tue Jul 5 13:15:55 MDT 2011


This sounds like a more advanced use-case that would require more hooks into ML at the Stratimikos level and is very ML-specific.  Could you use to Stratimikos::DefaultLinearSolver builder objects and some of your own wrapper code to construct this?  Does ML already have built-in support to use AztecOO internally?  This might be more of question for the ML developers.


> -----Original Message-----
> From: trilinos-users-bounces at software.sandia.gov [mailto:trilinos-
> users-bounces at software.sandia.gov] On Behalf Of Alberto F. Martín-
> Huertas
> Sent: Tuesday, July 05, 2011 2:31 AM
> To: trilinos-users at software.sandia.gov
> Subject: [Trilinos-Users] AztecOO as smoother for ML from Stratimikos
>  Dear all,
>  AztecOO solvers can be used as smoothers for
>  the ML hierarchy. The AztecOO params and options
>  arrays are passed to the MultilevelPreconditioner class
>  wrapped around RCP objects via the "smoother: Aztec options" and
>  "smoother: Aztec params"
>  keys of a Teuchos::paramList.
>  I would like to know whether there exist any means
>  from a XML file to be read by a Stratimikos
>  driver to set the particular parameters for
>  AztecOO solvers when they are used as smoothers
>  for ML.
>  Thanks in advance.
>  Best regards,
>   Alberto.
> --
>  Alberto F. Martín-Huertas
>  Centre Internacional de Mètodes Numèrics a l'Enginyeria (CIMNE)
>  Parc Mediterrani de la Tecnologia, UPC
>  Esteve Terrades 5, Building C3, Office 207,
>  08860 Castelldefels (Barcelona, Spain)
>  e-mail: amartin at cimne.upc.edu
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